Merge branch 'for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

Pull workqueue updates from Tejun Heo:
 "Mostly cleanups and other trivial changes.

  The only interesting change is Sebastian's rcuwait conversion for RT"

* 'for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: use BUILD_BUG_ON() for compile time test instead of WARN_ON()
  workqueue: fix a piece of comment about reserved bits for work flags
  workqueue: remove useless unlock() and lock() in series
  workqueue: void unneeded requeuing the pwq in rescuer thread
  workqueue: Convert the pool::lock and wq_mayday_lock to raw_spinlock_t
  workqueue: Use rcuwait for wq_manager_wait
  workqueue: Remove unnecessary kfree() call in rcu_free_wq()
  workqueue: Fix an use after free in init_rescuer()
  workqueue: Use IS_ERR and PTR_ERR instead of PTR_ERR_OR_ZERO.

include/linux/workqueue.h

@@ -62,7 +62,7 @@ enum {
 	WORK_CPU_UNBOUND	= NR_CPUS,
 
 	/*
-	 * Reserve 7 bits off of pwq pointer w/ debugobjects turned off.
+	 * Reserve 8 bits off of pwq pointer w/ debugobjects turned off.
 	 * This makes pwqs aligned to 256 bytes and allows 15 workqueue
 	 * flush colors.
 	 */